CN112648360B - Pure electric vehicle gear shifting system and method with two-gear transmission - Google Patents
Pure electric vehicle gear shifting system and method with two-gear transmission Download PDFInfo
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- CN112648360B CN112648360B CN202011506049.6A CN202011506049A CN112648360B CN 112648360 B CN112648360 B CN 112648360B CN 202011506049 A CN202011506049 A CN 202011506049A CN 112648360 B CN112648360 B CN 112648360B
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- gear
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- gearbox
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- 230000005540 biological transmission Effects 0.000 title claims description 12
- 238000000034 method Methods 0.000 title abstract description 9
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/08—Range selector apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/0204—Selector apparatus for automatic transmissions with means for range selection and manual shifting, e.g. range selector with tiptronic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Abstract
The invention discloses a pure electric vehicle gear shifting system with a two-gear gearbox, wherein a vehicle control unit is connected with the two-gear gearbox system and inputs gear control signals to the two-gear gearbox system, the two-gear gearbox system is provided with a manual operation gear shifting mechanism and is arranged in a vehicle, the manual operation gear shifting mechanism inputs gear control signals to the two-gear gearbox system, the vehicle control unit is connected with a manual gear shifting switch, and the manual gear shifting switch inputs signals of a manual gear mode or an automatic gear mode to the vehicle control unit. The gear shifting system and the gear shifting method can manually control the gear of the gearbox through a user, select a proper gear according to the actual driving road condition, and are favorable for improving the smoothness and the endurance of the vehicle.
Description
Technical Field
The invention relates to a design technology of a two-gear transmission carried by a pure electric vehicle in a passenger vehicle.
Background
The gear shifting characteristics of a pure electric vehicle carrying a two-gear gearbox are different from those of a traditional fuel vehicle, and the fuel vehicle carrying a manual integrated gearbox can be manually shifted, so that most of users are skilled in gear shifting points at present; for a pure electric vehicle carrying a 2-gear gearbox, the number of vehicle types in the market is small at present, and even if the vehicle has a manual gear shifting mode, the gear shifting is greatly different from that of a fuel vehicle when the gear shifting is carried out. In the gear shifting process of the fuel vehicle or the pure electric vehicle with the two-gear speed reducer, the smoothness of the vehicle is affected, and meanwhile, the automatic gear shifting mode is used, and the gear shifting point is fixed. In addition, when the pure electric vehicle runs at different running speeds, the two speed ratios of the two gear boxes have different influences on endurance, and the influence on endurance is obvious.
Disclosure of Invention
The invention aims to solve the technical problem of realizing a gear shifting system with a two-gear transmission system and a control method, which can improve the cruising of a pure electric automobile, avoid gear shifting and pause, and improve the cruising range and the driving smoothness of the electric automobile.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a carry on pure electric vehicles shift system of two fender gearboxes, vehicle control unit connect two and keep off the gearbox system and to two fender gearbox system input gear control signal, two keep off the gearbox system and be equipped with the manually operation gearshift of installing in the car, manually operation gearshift inputs gear control signal to two fender gearbox system, vehicle control unit is connected with manual shift switch, manual shift switch inputs signal to vehicle control unit of manual fender mode or automatic fender mode.
The manual operation gear shifting mechanism is arranged on an operation table between the main driving place and the auxiliary driving place or on an instrument table.
The vehicle control unit is connected with a vehicle display and inputs gear mode signals and gear state signals to the display, and the vehicle display is a vehicle instrument and/or a central control screen.
According to the gear shifting method of the pure electric vehicle gear shifting system, the vehicle control unit executes a manual gear mode or an automatic gear mode according to the working state of the gearbox input by the manual gear shifting switch;
when the automatic shift mode is executed: the vehicle control unit automatically controls the two-gear transmission system according to a preset gear control logic;
when the manual shift mode is executed: the two-gear gearbox system executes corresponding gears according to gear control signals input by the manual operation gear shifting mechanism.
When the manual shift mode is executed: when the speed is lower than 60km/h and the gear is switched from 1 gear to 2 gear by manually operating the gear shifting mechanism, the two-gear transmission system maintains the state of 1 gear, and when the speed reaches 60km/h and the gear is maintained at 2 gear by manually operating the gear shifting mechanism, the two-gear transmission system is switched to 2 gear.
When the manual shift mode is executed: and when the vehicle speed is lower than 30km/h and the gear maintained by the two-gear gearbox system is 2 gear, automatically controlling the two-gear gearbox system to be switched to 1 gear.
After the vehicle is started, the default gear of the vehicle is gear 1.
After the vehicle is started, the default state of the manual gear shifting switch is the automatic gear mode.
When the manual gear shifting switch is changed from the automatic gear mode to the manual gear mode, the two-gear transmission system maintains the current gear.
The gear shifting system and the gear shifting method can manually control the gear of the gearbox through a user, select a proper gear according to the actual driving road condition, and are favorable for improving the smoothness and the endurance of a vehicle.
Drawings
The following is a brief description of each figure in the specification of the present invention:
fig. 1 is a shift diagram.
Detailed Description
The following description of the embodiments with reference to the drawings is provided to describe the embodiments of the present invention, and the embodiments of the present invention, such as the shapes and configurations of the components, the mutual positions and connection relationships of the components, the functions and working principles of the components, the manufacturing processes and the operation and use methods, etc., will be further described in detail to help those skilled in the art to more completely, accurately and deeply understand the inventive concept and technical solutions of the present invention.
Carry on pure electric vehicles shift system of two fender gearboxes and be used for promoting the ride comfort and the continuation of the journey of pure electric two fender cars, the part that relates to includes pure electric vehicles's whole car Control Unit (VCU), two fender reduction gear shift module, and corresponding manually operation gearshift, two keep off the gearbox, including manual shift switch and automatic gearshift promptly, whole car controller is according to the gear of driver's manual shift switch selection, control gearbox automatic gearshift shifts, in order to avoid the whole car ride comfort that automatic shift brought, promote motorcycle type continuation of the journey simultaneously. The vehicle control unit can display vehicle condition information on a central control screen or a vehicle instrument according to the received signals, wherein the vehicle condition information comprises a gear shifting control switch.
As shown in fig. 1, when a driver needs to drive, the driver does not like to manually control the gear of the gearbox, at the moment, the vehicle can drive in a default automatic mode without any operation, and the vehicle drives in an automatic gear shifting mode.
The driver knows the route to the destination to a certain extent, if the driving route is an urban road, most of the speed limit is below 60-70km/h, and only occasionally the speed reaches more than 70km/h (the highest speed which can be reached can be described in a vehicle use manual, and the speed of 1 gear in two general gear boxes can reach more than 90 km/h); at the moment, a driver can select 1 gear to drive through the gear control switch of the gearbox, gear switching cannot be automatically carried out in the driving process, and the driving smoothness of the whole vehicle is improved.
When a driver drives on an expressway or drives a national road, a provincial road and the like without traffic lights for a long time, when a vehicle drives to more than 60km/h (different gear shifting speeds can be explained in a vehicle use manual), a manual gear shifting mode can be selected, a gear is selected to be 2 gear, the vehicle always keeps driving at 2 gear, and the continuation of the journey of the vehicle can be promoted when the vehicle drives at 2 gear at high speed; when the vehicle decelerates below 30km/h, the VCU automatically switches the gear to 1 gear even if the manual shift switch does not control the gear of the gearbox to be 1 gear;
in order to ensure the working reliability of the automatic gear mode and the manual gear mode, no matter whether the driver selects the gear shifting mode to be the manual mode or the automatic mode, when the vehicle starts and the vehicle speed is lower than 60km/h, the vehicle cannot be switched to the 2-gear; and the driver selects the manual gear shifting mode, when the speed is lower than 30km/h (the speed of different vehicles is described in the instruction manual), the vehicles are automatically switched to the 1 st gear; after the colleague vehicle is started, the default gear of the vehicle is 1 gear, and at the moment, the gear cannot be switched to 2 gears even manually.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.
Claims (2)
1. The utility model provides a carry on pure electric vehicles shift system of two fender gearboxes, whole vehicle control unit connects two and keeps off gearbox system and inputs gear control signal to two fender gearbox system, its characterized in that: the two-gear gearbox system is provided with a manual operation gear shifting mechanism installed in a vehicle, the manual operation gear shifting mechanism inputs gear control signals to the two-gear gearbox system, the vehicle control unit is connected with a manual gear shifting switch, and the manual gear shifting switch inputs signals of a manual gear mode or an automatic gear mode to the vehicle control unit;
the manual operation gear shifting mechanism is arranged on an operation table between the main driving place and the auxiliary driving place or on an instrument table;
the vehicle control unit is connected with a vehicle display and inputs a gear mode signal and a gear state signal to the display, and the vehicle display is a vehicle instrument and/or a central control screen;
the vehicle control unit executes a manual gear mode or an automatic gear mode according to the working state of the gearbox input by the manual gear shift switch;
when the automatic shift mode is executed: the vehicle control unit automatically controls the two-gear transmission system according to a preset gear control logic;
when the manual shift mode is executed: the two-gear gearbox system executes corresponding gears according to gear control signals input by the manual operation gear shifting mechanism;
when the manual shift mode is executed: when the speed is lower than 60km/h and the gear is switched from the 1 gear to the 2 gear by manually operating the gear shifting mechanism, the two-gear transmission system maintains the 1 gear state, and when the speed reaches 60km/h and the gear is maintained at the 2 gear by manually operating the gear shifting mechanism, the two-gear transmission system is switched to the 2 gear;
when the manual shift mode is executed: when the vehicle speed is lower than 30km/h and the gear maintained by the two-gear gearbox system is 2 gear, automatically controlling the two-gear gearbox system to be switched to 1 gear;
after the vehicle is started, the default state of the manual gear shifting switch is an automatic gear mode;
when the manual gear shifting switch is changed from the automatic gear mode to the manual gear mode, the two-gear transmission system maintains the current gear.
2. A pure electric vehicle gear-shifting system with a two-gear gearbox according to claim 1, characterized in that: after the vehicle is started, the default gear of the vehicle is gear 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011506049.6A CN112648360B (en) | 2020-12-18 | 2020-12-18 | Pure electric vehicle gear shifting system and method with two-gear transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011506049.6A CN112648360B (en) | 2020-12-18 | 2020-12-18 | Pure electric vehicle gear shifting system and method with two-gear transmission |
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| Publication Number | Publication Date |
|---|---|
| CN112648360A CN112648360A (en) | 2021-04-13 |
| CN112648360B true CN112648360B (en) | 2023-02-21 |
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| CN202011506049.6A Active CN112648360B (en) | 2020-12-18 | 2020-12-18 | Pure electric vehicle gear shifting system and method with two-gear transmission |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1994782A (en) * | 2006-01-04 | 2007-07-11 | 凌恺夫 | Electric automobile driving apparatus |
| CN102121527A (en) * | 2011-03-11 | 2011-07-13 | 重庆长安汽车股份有限公司 | Method for automatic-manual transmission gear shifting for electronic automobile |
| CN102910084A (en) * | 2012-10-31 | 2013-02-06 | 上汽通用五菱汽车股份有限公司 | All-electric vehicle with EMT (electric-drive mechanical transmission) |
| CN107867202A (en) * | 2017-09-30 | 2018-04-03 | 深圳市沃特玛电池有限公司 | A kind of shifting control system and control method |
| CN209671536U (en) * | 2019-03-13 | 2019-11-22 | 重庆德音科技有限公司 | Electric vehicle two-speed automatic transmission |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445034A (en) * | 2015-11-25 | 2016-03-30 | 王钦普 | Gear reuse mechanism for virtual complete vehicle test |
| EP3853060A1 (en) * | 2018-09-21 | 2021-07-28 | Epower Engine Systems Inc | Control of clutchless vehicle electronic shift transmissions operating as bi-directional power transfer devices |
-
2020
- 2020-12-18 CN CN202011506049.6A patent/CN112648360B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1994782A (en) * | 2006-01-04 | 2007-07-11 | 凌恺夫 | Electric automobile driving apparatus |
| CN102121527A (en) * | 2011-03-11 | 2011-07-13 | 重庆长安汽车股份有限公司 | Method for automatic-manual transmission gear shifting for electronic automobile |
| CN102910084A (en) * | 2012-10-31 | 2013-02-06 | 上汽通用五菱汽车股份有限公司 | All-electric vehicle with EMT (electric-drive mechanical transmission) |
| CN107867202A (en) * | 2017-09-30 | 2018-04-03 | 深圳市沃特玛电池有限公司 | A kind of shifting control system and control method |
| CN209671536U (en) * | 2019-03-13 | 2019-11-22 | 重庆德音科技有限公司 | Electric vehicle two-speed automatic transmission |
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| CN112648360A (en) | 2021-04-13 |
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